초록 ▼

A method for preparing a sulfonated compound with minimal or no waste products using a porous inorganic material absorber. The absorber is saturated with a compound to be sulfonated and then contacted with a sulfonating gas mixture to form a sulfonated product. After forming the sulfonated product,

A method for preparing a sulfonated compound with minimal or no waste products using a porous inorganic material absorber. The absorber is saturated with a compound to be sulfonated and then contacted with a sulfonating gas mixture to form a sulfonated product. After forming the sulfonated product, excess sulfonating gas is removed by contacting the sulfonated product with warm air. The sulfonated product is then neutralized and the product is removed with water from the inorganic material absorber. The absorber is then dried with hot air so that it may be reused for future sulfonation processes. The process results in preparation of a sulfonated compound having inorganic salts present in an amount less than about 1.0 percent by weight based on total sulfonated product weight. The process results in highly effective sulfonation of a compound with formation of little or no waste materials, particularly waste materials such as solvents and undesirable inorganic salts. Also disclosed is the resulting sulfonated product.

대표청구항 ▼

A method for preparing a sulfonated compound on a porous inorganic material carrier-absorber which produces minimal or no waste products, comprising: (a) contacting a porous inorganic material absorber with a compound to be sulfonated selected from the group consisting of hydrocarbons, aromatic hydr

A method for preparing a sulfonated compound on a porous inorganic material carrier-absorber which produces minimal or no waste products, comprising: (a) contacting a porous inorganic material absorber with a compound to be sulfonated selected from the group consisting of hydrocarbons, aromatic hydrocarbons, alkylated aromatic hydrocarbons, alkanols, amines, imines, and polystyrene to from an adsorbate; (b) reacting the absorbate with a sulfonating gas containing SO3 gas in order to from a sulfonated product; (c) neutralizing the sulfonated product; and (d) removing the sulfonated product from the inorganic material adsorber.